/* InternalClock.h
*
*  MIT License
*
*  Copyright (c) 2020-2025 awawa-dev
*
*  Project homesite: https://github.com/awawa-dev/HyperHDR
*
*  Permission is hereby granted, free of charge, to any person obtaining a copy
*  of this software and associated documentation files (the "Software"), to deal
*  in the Software without restriction, including without limitation the rights
*  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
*  copies of the Software, and to permit persons to whom the Software is
*  furnished to do so, subject to the following conditions:
*
*  The above copyright notice and this permission notice shall be included in all
*  copies or substantial portions of the Software.

*  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
*  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
*  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
*  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
*  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
*  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*  SOFTWARE.
 */

#pragma once

#ifndef PCH_ENABLED
	#include <chrono>
	#include <thread>
	#include <atomic>
	#include <QObject>
#endif

class InternalClock
{
public:
	static long long int now();
	static long long int nowPrecise();
	static bool isPreciseSteady();
private:
	const static std::chrono::time_point<std::chrono::steady_clock> start;
	const static std::chrono::time_point<std::chrono::high_resolution_clock> startPrecise;
};

class HighResolutionScheduler {
public:
	HighResolutionScheduler() = default;
	~HighResolutionScheduler();

	void start(QObject* receiver, std::function<void()> task, std::chrono::microseconds period);
	void stop();

private:
	void sleepUntil(std::chrono::steady_clock::time_point tp);

	std::thread worker;
	std::atomic<bool> running{ false };
#ifdef _WIN32
	void* timer = nullptr;
#endif
};
